|Publication number||US7422142 B2|
|Application number||US 10/876,769|
|Publication date||Sep 9, 2008|
|Filing date||Jun 25, 2004|
|Priority date||Jun 25, 2004|
|Also published as||US20050284786|
|Publication number||10876769, 876769, US 7422142 B2, US 7422142B2, US-B2-7422142, US7422142 B2, US7422142B2|
|Inventors||Giuseppe Jeffrey Arippol|
|Original Assignee||Giuseppe Jeffrey Arippol|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (44), Non-Patent Citations (3), Referenced by (9), Classifications (14), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention is directed toward the field of packaging, and more particularly toward a re-sealable package for opening and closing.
2. Art Background
It is already known the package intended particularly to pack crackers and comprised, essentially, of a sheet of plastic film of proper size, composed by layers that have specific functions, such as structure, barrier against action of aggressive external agents, as printing base, of thermal sealing made in both faces, among others. The packaging operation using said package is made through high-speed machinery that, in general, performs the following operations: to form a proper stack of crackers, to cut and fold a sheet of package around the stack of crackers, superposing the longitudinal ends of the sheet so as that the sheet length is larger than that of the cracker stack and that the cross ends of the sheet are projected in relation to the ends of the stack of crackers; to carry out the hot sealing operation on the superposed longitudinal ends, fixing the film around the stack of crackers; to make folds at the ends of the sheet, projected beyond the ends of the stack of crackers, so as that, at each end, two first opposite regions of the sheet are held directly on the ends of the stack of crackers, that one of the other two second opposite regions of the sheet is held on said two first opposite regions and that the other second opposite region is held on said opposite second region; and carry out hot sealing operations of said folded ends of the package, so as that, at each end, at least the second of said folds are fixed to each other.
The opening of such type of cracker package by the consumer is made by breaking the hot sealing of one of the folded ends, therefore releasing the other folds, allowing access to the product.
In another possible embodiment of such package type, plastic film sheet incorporates a narrow band, named “tearing tape”, which is located close to one of the cross borders and that, when the package is ready, remains around the stack of crackers.
The package opening, in such case, is made by pulling a loose end of the “tearing tape”, which breaks the package.
Both package embodiments are proper for the packing of the crackers before the package opening, that is, in the marketing period between the product manufacturing plant and the sale point and between the latter and the final consumer. However, after the opening of the product package and in case the whole contents thereof are not consumed, the package does not provide anymore a proper packaging for the remaining product, generally because of not providing means for a relatively air-tighten closure after the first opening.
Therefore, user has to take improvised measures of closing after the package opening, which does not provided proper protection for the remaining product.
As a result of that, improvements have been introduced in such kind of package, aiming at providing it with any means that allow to close it properly after its opening, so as to provide proper protection for any remaining product, which is not consumed at the time of opening.
Therefore, the purpose of the disposition object hereof is to provide a self-adhesive label that, at an initial time, acts as part of the package opening mechanism and that, at a second moment, after the opening thereof, is taken from the original location and re-applied in a new position, which provides proper closing of the package after its first opening.
Another purpose is to provide a closure label that results in the aforementioned effect, but which can be applied to the package through usual packing equipment without any change.
Another purpose is to provide a closure label that, despite giving the aforementioned advantages, is not, because of those advantages, something with construction, manufacture or application in the package with complexity levels that may turn it non-interesting.
Another purpose is to provide a closure label that provides a cost-effective solution.
Another purpose is to provide a package formed by the closure label.
A package with a re-sealable closure for opening and closing comprises a plastic film cut in the desired shape that, after assembled, configures a thin main body having a different cross section. The closing of the ends of the package occurs by the superposition and temporary joining of flaps, forming a wrapping with an internal packaging cavity, characterized by the fact that the closing flap incorporates a re-sealable closure label, formed by a section provided with temporary adhesive and other section free from such adhesive, configuring therein a picking languet and removal of said closure label.
As shown by the figures listed above, label 1, object of this invention patent, is intended to comprise a closure to open and close package 20, preferably of crackers or similar products, formed by a plastic film provided, among others, with hot-sealant layers in both faces.
Said closure label 1 is comprised essentially: of a plastic label body 2, which may have any proper relatively extended configuration; of a re-sealable adhesive layer 3, placed at one of the faces of body 2; of a release varnish layer 4, placed on the opposite face of the body 2; and hot sealant varnish layer 5 incorporated on the release varnish layer 4; said label body 2 has an end where the re-sealable adhesive layer 3 is “finished” (
For the purposes of this report, the word “re-sealable”, attributed to the adhesive layer 3, shall mean that said adhesive layer may be stuck to and detached from a surface for several times. The word “finished” attributed to a region of layer 3 foreseen at the end of the label body 2 shall mean that the adhesive layer in that region is coated with a non-adherent material layer, such as a layer of varnish or plastic film 7.
Closure label 1 is supplied to the party that applies it on the package adhered on a support tape and silicone-coated paper protection, liner, 10, where the re-sealable layer 3 is adhered, which tape 10 contains several closure labels 1 spaced evenly, and which is supplied in the form of reel or sheets.
Several closure labels 1, as described above (
Therefore, package tape 21, having closure labels 1 adhered thereon, follows to the other conventional packing stations 42 of equipment 40, which carry out the usual packing stages, that is: state of formation of a stack 50 of crackers, proper to be packed; cutting stage of a package sheet 21′ containing one closure label 1 and folding (
Upon the folding made on the cross border 23 of the package that contains closure label 1, as described above, the second opposite region 26, which does not contain the closure label 1, is under the hot sealant varnish layer 5 of the latter (
Therefore, the original closing of the package end, which contains closure label 1, is comprised (
In such conditions, package 20 is comprised (
In case the user does not consume the whole contents of the package and wants to close it again, closure label 1 may be pulled again and may have its re-sealable adhesive layer 3 unstuck from the internal surface of the external fold 26′ (
Therefore, this closure label 1 settles the problems and limitations of the usual closure means of packages for crackers and similar products 20, of the type formed by plastic film enclosure, since it acts as part of the original closing system of the package; it allows and makes easier the package opening through its picking end 6; and also allows it to be removed from its original position in the package and, in case the package contents are not fully consumed, to be re-applied in another position, which allows new closing of the package after it being opened and proper protection of its remaining contents.
Another advantage of this closure label 1, as already seem, is the fact that it can be applied on the package without changing the usual packing equipment 40 of package formation, it being enough only the juxtaposition of said equipment 40 to a labeler-type label application equipment 30.
Another advantage of this closure label is the fact that it does not present construction, manufacture or cost that makes it improper in view of the ideal cost-benefit ratio of the package.
Another advantage is that the package itself is provided with the closure label, which is more practical and effective than the others.
Within the basic construction described above, the closure label object of this invention patent, as well as the package to which it is intended, may present changes related to materials, dimensions, constructive and/or functional configuration and/or decorative details, without deviating from the scope of the requested protection.
In view of that, the closure label may be rectangular or may have other shapes, according to the application, which are proper to its actuation mentioned above.
Closure label may have body 2 comprised of a polymer or a composition of laminated or co-extruded polymers or others. Examples of proper polymers are polymers similar but not limited to: polyester, polypropylene and polyethylene. A specific example of a proper material for a label body is polyester, proper but not limited to 66.1/36 or 19.10/23 of Terphane Company.
The re-sealable adhesive layer 3 may comprise one of the commonly used adhesives. For example, the pressure-sensitive adhesive may be a water-based acrylic adhesive or solvent-based acrylic adhesive (type methyl metacrylate copolymer with butyl acrylate) or adhesive based on hot-melt rubber. The adhesive may be applied by methods that provide a controlled quality standard.
The hot sealant varnish layer 5 is preferably a hot sealable permanent adhesive, the composition of which consists essentially of a vinyl of vinylidene copolymer, a polymer or copolymer of acrylic esther or polyester resin obtained by condensation.
The release varnish layer 4 is preferably a varnish with low affinity to adhesives, the composition of which is basically or acrylic and/or vinyl resins and/or polyester by-products, with silicone parts.
Closure label 1 may be comprised, as seem above: of a label body 2; of a re-sealable adhesive layer 3 given in one of the faces of body 2 and that, in one of the ends of said layer, may be omitted, as shown in
In another possible embodiment, closure label 1 may be comprised: of body 2; of re-sealable adhesive layer 3 given in one of the faces of body 2; of end of body 2 provided with adhesive layer “finished” with a varnish or plastic film layer 7 in order to compose the picking end 6 (
Closure label 1 may either not contain or contain any proper printing layer.
Package 20, where the closure label 1 is applied, is comprised of a plastic film, which may be composed by layers with any specific functions, such as: structure; barrier against aggressive external agents; printing base, printing; of hot sealing in both external faces, among others, and may be applied to other product types, than crackers, which have tablet form.
Although the present invention has been described in terms of specific exemplary embodiments, it will be appreciated that various modifications and alterations might be made by those skilled in the art without departing from the spirit and scope of the invention.
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|U.S. Classification||229/87.01, 229/123.1, 229/87.08, 206/459.5, 383/211|
|International Classification||B65D75/04, B65D75/08, B31D1/02, B65D85/00|
|Cooperative Classification||B31D1/021, B65D2575/586, B65D75/08|
|European Classification||B31D1/02B, B65D75/08|
|Apr 23, 2012||REMI||Maintenance fee reminder mailed|
|May 11, 2012||FPAY||Fee payment|
Year of fee payment: 4
|May 11, 2012||SULP||Surcharge for late payment|